201123222022 has 128 divisors (see below), whose sum is σ = 369851443200. Its totient is φ = 81237252096.

The previous prime is 201123222011. The next prime is 201123222043. The reversal of 201123222022 is 220222321102.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22832343 + ... + 22841149.

It is an arithmetic number, because the mean of its divisors is an integer number (2889464400).

Almost surely, 2^201123222022 is an apocalyptic number.

201123222022 is a deficient number, since it is larger than the sum of its proper divisors (168728221178).

201123222022 is a wasteful number, since it uses less digits than its factorization.

201123222022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8950.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 201123222022 its reverse (220222321102), we get a palindrome (421345543124).

The spelling of 201123222022 in words is "two hundred one billion, one hundred twenty-three million, two hundred twenty-two thousand, twenty-two".